/*
 * Copyright (c) 2009-2010 Panxiaobo
 * 
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 * 
 *      http://www.apache.org/licenses/LICENSE-2.0
 * 
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */
package pxb.android.dex2jar;

/**
 * 输入流
 * 
 * @author Panxiaobo [pxb1988@126.com]
 * @version $Id$
 */
public interface DataIn {

    public int readIntx();

    public long readLongx();

    public short readShortx();

    public void move(int offset);

    public void pushMove(int offset);

    public void push();

    public void pop();

    byte[] readBytes(int size);

    long readUnsignedLeb128();

    long readSignedLeb128();

    /**
     * @return
     */
    public int readUnsignedByte();

    public boolean needPadding();

    /**
	 * 
	 */
    public int readByte();

    /**
     * @param i
     */
    public void skip(int bytes);

    /**
     * 获取当前位置
     * 
     * @return
     */
    public int getCurrentPosition();

}
